Key-ring



FIG. 1 is a right side elevational view of a key ring, showing my new design;

FIG. 2 is a left side elevational view;

FIG. 3 is a front elevational view;

FIG. 4 is a rear elevational view;

FIG. 5 is a top plan view;

FIG. 6 is a bottom plan view;

FIG. 7 is a perspective view; and

FIG. 8 is a perspective view of a key ring in open state. 

The ornamental design for a key-ring, as shown and described. 